Spark-arrester



(No Model.)

J. H. FILGER & J. GILDUFP.

S ARK ARRESTER. No. 263,496. Patented Aug. 29, 1882.

ATTORNEYS.

NITED STATES PATENT Grrtcn.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 263,496, dated August 29, 1882-.

Application filed May 23, 1882. (No model.)

To all whom it may concern Be it known that we, JOHN H. FILOER and JAMES GILDUFF, of Mattoon, in the county of Ooles and State of Illinois, have invented a new and useful Improvement in Spark-Arresters, of which the following is a full, clear, and exact description.

Our invention consists in a spark-arrester'of novel construction applied in connection with the smoke-stack of a locomotive, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a vertical section of a locomotivestack provided with our improved spark-arrester. Fig. 2 is a vertical section at right an gles to Fig. 1.

A is the smoke-box.

B is a pipe extending from within the smokebox to a suitable height to form the smokestack.

0 is a pipe or hollow cylinder fitted around the pipe B above the smoke-box and open at its upper and its lower ends, the lower end conimunicating directly with the smoke-box.

D is a hood orjacket fixed around the pipe 0 and closed at its upper end, suitable space being left between the jacket D and the pipe 0 and the stack B. Upon the pipe B is fitted a flange, a, which is curved above the upper edge of the pipe 0.

E is a tapering pipe fitted around the pipe B within the smoke box, and formed with a I flaring lower end. The inner pipe, B, is formed with long slot-s or openings 1) in its whole sur- 'face, from the flange a to its closed lower end.

In operation the sparks and smoke pass upward in the space between the pipe B and its inclosing-pipe E. and also in the space between the pipeB and pipe 0 above the smoke-box. The slots in the pipe B allow the smoke to pass through and escape,while the sparks, being detained,are carried up against the flange a and diverted into the space between the pipe 0 and thejacket D, which forms a chamber for their reception. From the lower part of this chamber the sparks are to be conveyed into the firebox.

We have shown pipes dd extending from the jacketed space to the smoke-box and from thence into the fire-box, and steam-pipes c from the steam-nozzlef enter the pipe at for use in forcing the sparks into the fire-box.

Having thus described our invention, we claim as new and desire to secure by Letters Patent I The combination, with the slotted smokestack B, inclosing-pipe O,jacket D, concave collar a, funnel-shaped pipe E, and spark-discharging pipes d, of the steam-pipes c, for forcing the sparks into the fire-box against the natural draft, as shown and described.

JOHN H. FILGER. JAS. GILDUFF.

Witnesses:

A. J. SANBORN, PATRICK VAUGHN. 

